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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 968696Generated: October 29, 2026

Ammonium Chloride → Benzenamine, 3-bromo-4-methyl-

https://huagongshe.com/reaction/968696

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
Reactant2-Bromo-4-nitrotolueneHCID 82189—
CatalystIronHCID 23925—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductBenzenamine, 3-bromo-4-methyl-HCID 82187—

Reaction Steps

To a suspension of iron (1.5 g, 27.6 mmol) and ammonium chloride (2.46 g, 46 mmol) in water (50 mL) was slowly added a solution of 3-bromo-4-methyl-1-nitrobenzene (1.0 g, 4.6 mmol) in methanol (25 mL). The resulting mixture was refluxed for 2 hours. The solids formed were filtered through celite while the reaction mixture was still hot, the solvent of the clear filtrate was then removed. The crude residue was redissolved in water, extracted with ethyl acetate and dried over anhydrous sodium sulfate. The crude oil was adsorbed on silica gel and purified by flash chromatography on silica gel (hexanes/EtOAc from 95:5 to 50:50). The product, 3-bromo-4-methylaniline, was isolated as pale red oil (462 mg). HPLC Rt 3.425 minutes.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07304071B2
Source datasetuspto-grants-2007_12
ORD IDord-cd23d8cbef744e02b4ad6354a2d7cbae
Source noteuspto-grants-2007_12